Type-writing machine.



A. BUFFIN ,TYP'E W-RITIYING MACHINE.

ARPL IC ATION FILED MAR. 3|, I916- Patented Oct. 9,1917.

QM MENUS ran snares PATENT OFFIC JOHN A. RUFFIN, OF MIDDLETOWN,CONNECTICUT, ASSIGNOR TO TH E NOISELESS TYPE- WRITER COMPANY, OFMIDDLETO WN, CONNECTICUT, A CORPORATION NECTIC'UT.

Application filed March 31, 1916. Serial No. 87,938.

This invention relates'to typewriting ma chines, and more particularlyto improved type carriers and type sets therefor. One of the objects ofthe invention is to provide a simple and practical type carrier capableof expeditious adjustment to present alternative type characters forprinting.

'Other objects and advantages will be in part noted hereinafter inconnection with.

the description of the accompanying drawing, wherein is represented anexemplary embodiment of the invention.

Referring more particularly to the drawing, there are shown parts of onetype action, including a pivoted bell crank lever 1 having its long armmedially pivoted to a floating link 2 at the forward end of which isarranged a leaded weight 3 and the rear end of which is pivoted to thedepending arm 4 of a T-lever 5. The bell crank lever 1 and T-lever 5 areboth pivoted to a supporting bracket 6 mounted for adjustment on a crosspiece 7 of the machine frame.

The opposite end of the T-lever 5 is pivot-- I ally connected with alink 8, in turn connected pivotal-1y to a medial cross member of alongitudinally movable typecarrier 9.

The bell crank lever 1 is adapted for actuation by a key lever of themachine to carry the long arm of the-lever in overlapping alinement tothe rear arm of the floating link 2 and toextend the top arm of theT-lever 5 into alinement with the link 8,

thereby forming two straightened toggles v to limit the mov ment of" thetype carrier The levers 1 and 5 9 toward the platen. are of duplex formto respectively straddle lever 5 and floating link 2 when actuated, totransmit movement'to the type carrier under controlled speed andpressure.

Specification of Letters lfatent.

OF CON TYPE-WRITING MACHINE."

Patented Oct. 9, 1917.

The type carrier 9 is preferably of the skeleton form shown and mountedfor reciprocation between a bed plate 10 and a top plate 11, beingguided by registering grooves 12 in guide plates 13 and 14. At each endof the type carrier there is provided a set of type characters 15 and15' faced with three type to print in different case positions-of theshiftable platen. The type pieces 15, 15 are riveted or otherwisesolidly fixed to the type'carrier, and are secured thereto in relativelyopposite positions. The type'carrier 9' is relatively thin and is freelypivoted to the double arm link 8 by screw pivot 16 so that the typecarrier may be swung'when desired and reversed in position to bring thetype piece 15 at the opposite end into action for printing. In thismanner the type carrier is provided with two separate sets of characterswhich may be alternatively used when, for eX- ample, one set has becomeworn or defaced. A further advantage of the structure described residesin its adaptability for print- I ing in different languages, since itwill be apparent that one set of English type may be used and one set ofcharacters for a foreign language: The change from one to the other isalso readily efiectible, it being necessary merely to remove topplate 11and swing the type carriers reversely, and then replace the top plate.

The invention is shown-in the drawing as in R rporated in a noiselesstypewriter. It is to be understood, however, that certain featuresthereof are applicable as Well to various other styles of machines.

Having described my invention, what I claim as new and desire to secureby Letters Patent is:

1. In a typewriting machine, in combina tion, a type carrier having aplurality of sets of oppositely disposed type, a power transmittingmember freely pivotedgto said carrier, and spaced guides for saidcarrier, one of said guides being removable for permitting reversal ofsaid carrier to present selective type to print z 2. In a typewritingmachine, a platen, a longitudinally movable skeleton type carrier, apower transmitting link medially connected thereto,.and separate sets oftype rigidly secured to opposite ends of said car- .rier for alternativecoaction with said platen. 1 3. In a typewriting' machine, a recipro--cable type carriermounted for movement between supporting and guidingplates, a

plurality of sets of type permanently and rigidly attached to' said typecarrier, and

means permitting reversal of said carrier for utilizing either of saidsets efi'ect printing. I

In testimony whereof in the presence of of-type to' 10 I afiix mysignature, two witnesses. 4 JNo. A, RUFFIN.

Witnesses:

ERMA K. ALLEN, D. B. WESTIN.

